Sustainable Mobility and Transportation Fuels
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1 Sustainable Mobility and Transportation Fuels Brian Weeks, P.E. Director, GTI Houston Office > April 13, 2016
2 Today s Talk > Who is GTI > Some Thoughts on Sustainability > Natural Gas Supply and Vehicle Applications > Hydrogen for FCV s > Sustainability, NatGas, and Hydrogen 2
3 ESTABLISHED 1941 Company Overview > Independent, not-for-profit established by the natural gas industry > Headquarters in Des Plaines, IL > GTI tackles tough energy challenges turning raw technology into practical solutions > Downhole to the burner tip including energy conversion technologies > Applied collaborative research, development, & demonstration 3
4 How to Achieve Energy Sustainability Energy Sustainability may be achieved either by changing human behavior or by technology Which do you choose? 4
5 > Fuel? Oil What exactly IS Sustainable Transportation? Electricity (Source: Coal, NatGas, Nuclear, Wind, Hydro, Solar) Natural Gas BioGas Hydrogen > Vehicle Platform? ICE Hybrid Fuel Cell Battery 5
6 What are the right questions? > Are vehicle emissions a disqualifier for sustainable transportation? > How about a renewable fuel, but with emissions? > How about zero emissions, but not a renewable fuel? > What is the price for sustainability? Societal Economic Who Pays? > Are any of our existing commercial transportation options really 100% sustainable? 6
7 Natural Gas, a plentiful, but sustainable resource? GTI s HFTS Project is enabling higher recovery at lower per unit cost & impact US Proven Natural Gas Reserves continual upward revisions Source: EIA 2015 Energy Outlook 7
8 Natural Gas, a plentiful, but sustainable resource? Gas Hydrates represent 2X 10X conventional reserves Not economically viable but remember what we said about technology? 8
9 Transportation Sector and Natural Gas Vectors > Broadly defined, natural gas has a big footprint in U.S. transportation sector Around 1.3 Tcf/year (over 2 Tcf with pipeline use added in*) Indirect and direct uses > Indirect uses Petroleum refining (0.8 Quads) Ethanol production (0.5 Quads) Other new indirect vectors (e.g., GTL, electric vehicles, etc) > Direct uses NGVs (CNG, LNG): significant upside * Natural gas pipelines are part of multi-modal transportation sector (about 0.67 Quads) 9
10 Heavy-Duty Vehicles Represent Key Target Market > Over 1.2 Tcf market scenario, with long-term core around freight vehicles > High-fuel-use fleets see good payback periods today Over 5-10K gallons/year (as high as 20-25K gallons/year) Vehicle Class Fuel Displaced (Million Gasoline Gallon Equivalent) Natural Gas Demand (Bcf) Freight Trucks 8,913 1,096 Refuse Trucks Transit Buses School Buses High fuel displacement scenario Source: NGV America 10
11 Hydrogen Supply Multiple Options Is any one the best for all applications? Reformer Low variable cost high capital cost high efficiency low emissions Electrolyzer High capital cost Med variable cost Med efficiency Med emissions Hydrogen Tube Trailer or LH2 Delivery readily available High variable cost low efficiency high emissions 11
12 Hydrogen Facts > 1 kg of Hydrogen (2.2 lbs) = 113,500 btu s = 1 gal of gasoline (6 lbs) > At $6 natural gas, hydrogen costs $1- $2 / gge to make > Most of the cost of Hydrogen comes from storage and transportation (60% - 90% of delivered cost) > Compressed hydrogen is stored on vehicles at slightly higher pressures than NGV s > Fuel cells and EVs are about on par with each other from an emissions point of view > Vehicle OEM s are highly motivated to get out from under emissions regulations. Hydrogen balances zero-emissions with performance demanded by consumers. > Hydrogen-fueled FCV s double the efficiency of ICE vehicles 12
13 Sustainability, Hydrogen, Natural Gas Renewable Natural Gas to Hydrogen GTI Overview 13
14 Sources of biogas for renewable hydrogen > Produced from digesters Animal manure (dairy cows, swine) Waste water treatment facilities > Generated from Landfills > Digestion of food processing waste streams > Produced from thermal chemical processes like gasification utilizing renewable feed-stocks including forest residues and agricultural wastes. The methane (CH4) component of each of these biogas feedstocks is the primary source for renewable hydrogen generation 14
15 Technology facilitates Biogas to Renewable Hydrogen for Vehicles > Hydrogen generation system from biogas will consist of three key components Biogas cleanup system (H 2 S, CO 2, H 2 O, etc removal) to yield biomethane Biomethane reformation system (Typically steam-methane reformation 75-80% efficient) Hydrogen purification (remaining impurities removed including CO, CO 2,CH 4 ) > Hydrogen compression, high pressure storage, and dispensing > Periodic Hydrogen purity checks 15
16 Illustrative Process Flow Diagram for On-site H 2 Supply System & Fuel Cell Power Generation From Aerobic Digester Gas Plant Compression to move ADG thru clean-up CO 2 NOx, products of combustion Electricity Compressor Recycled waste gas from PSA used to heat reformer Hydrogen gas ADG Plant PSA Usable Heat Gas Cleanup System Steam Reformer Water- Gas Shift Reacto r Reformate Fuel cell application Electricity Solid waste consists of gas clean-up filters & absorbents (mostly sulfur compounds). Some vented CO 2 Air Feed Water Reformer s Usable Heat 16
17 Summary > Technology has pushed the resource base limits of conventional energy sources continually outward. > Determining which fuel and vehicle platform is better is a complex process built on shifting assumptions. > There will likely be a clear fuel and vehicle platform fit for certain applications. > Continual improvement in technology across multiple pathways and across the entire life cycle is important in the road toward sustainability. > It s doubtful that any fuel/vehicle platform combo today meets everyone s strict definition of sustainable or maybe they all do. 17
18 Turning Raw Technology into Practical Solutions GTI Overview 18
19 GTI Overview 19
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